雙導(dao)程蝸桿(gan)的(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)方法(fa)(fa)(fa)(fa)：雙導(dao)程蝸桿(gan)的(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)方法(fa)(fa)(fa)(fa)很多，如切削、鑄造、軋制(zhi)、沖壓(ya)等，其中常用(yong)(yong)(yong)的(de)(de)是切削加(jia)(jia)工(gong)(gong)(gong)(gong)方法(fa)(fa)(fa)(fa)。切削加(jia)(jia)工(gong)(gong)(gong)(gong)方法(fa)(fa)(fa)(fa)分(fen)為成(cheng)(cheng)形(xing)法(fa)(fa)(fa)(fa)和范成(cheng)(cheng)法(fa)(fa)(fa)(fa)兩類。 1．成(cheng)(cheng)形(xing)法(fa)(fa)(fa)(fa) 成(cheng)(cheng)形(xing)法(fa)(fa)(fa)(fa)是在銑(xian)(xian)床上用(yong)(yong)(yong)具有漸(jian)開(kai)線齒(chi)(chi)(chi)(chi)形(xing)的(de)(de)成(cheng)(cheng)形(xing)銑(xian)(xian)刀(dao)(dao)(dao)直接切出(chu)(chu)齒(chi)(chi)(chi)(chi)形(xing)。常用(yong)(yong)(yong)的(de)(de)有圓盤銑(xian)(xian)刀(dao)(dao)(dao)和指狀銑(xian)(xian)刀(dao)(dao)(dao)兩種(zhong)。切齒(chi)(chi)(chi)(chi)加(jia)(jia)工(gong)(gong)(gong)(gong)時，銑(xian)(xian)刀(dao)(dao)(dao)旋轉(zhuan)，同時輪(lun)坯(pi)沿齒(chi)(chi)(chi)(chi)輪(lun)軸線方向(xiang)移動。銑(xian)(xian)出(chu)(chu)一(yi)個(ge)(ge)齒(chi)(chi)(chi)(chi)槽(cao)以后，將輪(lun)坯(pi)轉(zhuan)過360°/z，再銑(xian)(xian)第二個(ge)(ge)齒(chi)(chi)(chi)(chi)槽(cao)。其余依此(ci)類推(tui)。 這(zhe)種(zhong)切齒(chi)(chi)(chi)(chi)方法(fa)(fa)(fa)(fa)簡單，不(bu)需(xu)要(yao)專用(yong)(yong)(yong)機床，但生(sheng)產率低(di)，精(jing)(jing)度低(di)，故(gu)僅適用(yong)(yong)(yong)單件(jian)(jian)或小批量生(sheng)產及(ji)精(jing)(jing)度要(yao)求不(bu)高的(de)(de)齒(chi)(chi)(chi)(chi)輪(lun)加(jia)(jia)工(gong)(gong)(gong)(gong)。 2．范成(cheng)(cheng)法(fa)(fa)(fa)(fa) 范成(cheng)(cheng)法(fa)(fa)(fa)(fa)是利用(yong)(yong)(yong)齒(chi)(chi)(chi)(chi)輪(lun)的(de)(de)嚙(nie)合(he)原理進(jin)行(xing)(xing)加(jia)(jia)工(gong)(gong)(gong)(gong)齒(chi)(chi)(chi)(chi)輪(lun)的(de)(de)一(yi)種(zhong)方法(fa)(fa)(fa)(fa)。這(zhe)種(zhong)方法(fa)(fa)(fa)(fa)強制(zhi)刀(dao)(dao)(dao)具同工(gong)(gong)(gong)(gong)件(jian)(jian)（輪(lun)坯(pi)）相(xiang)對運動同時進(jin)行(xing)(xing)切削。它們之(zhi)間的(de)(de)運動關系同一(yi)對齒(chi)(chi)(chi)(chi)輪(lun)嚙(nie)合(he)一(yi)樣，以此(ci)來保證(zheng)齒(chi)(chi)(chi)(chi)形(xing)的(de)(de)正(zheng)確和分(fen)齒(chi)(chi)(chi)(chi)的(de)(de)均勻。對于模(mo)數m和壓(ya)力角(jiao)a都相(xiang)同而(er)齒(chi)(chi)(chi)(chi)數不(bu)同的(de)(de)齒(chi)(chi)(chi)(chi)輪(lun)，可以用(yong)(yong)(yong)同一(yi)刀(dao)(dao)(dao)具進(jin)行(xing)(xing)加(jia)(jia)工(gong)(gong)(gong)(gong)。